Auto merge of #52266 - michaelwoerister:incr-thinlto-preliminaries, r=alexcrichton
Preliminary work for incremental ThinLTO. Since implementing incremental ThinLTO is a bit more involved than I initially thought, I'm splitting out some of the things that already work. This PR (1) adds a way accessing some ThinLTO information in `rustc` and (2) does some cleanup around CGU/object file naming (which makes things quite a bit nicer). This is probably best reviewed one commit at a time.
This commit is contained in:
bors
commit
a14a361c2c
25 changed files with 457 additions and 171 deletions
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@ -8,15 +8,16 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use hir::def_id::DefId;
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use hir::def_id::{DefId, CrateNum};
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use syntax::ast::NodeId;
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use syntax::symbol::InternedString;
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use syntax::symbol::{Symbol, InternedString};
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use ty::{Instance, TyCtxt};
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use util::nodemap::FxHashMap;
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use rustc_data_structures::base_n;
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use rustc_data_structures::stable_hasher::{HashStable, StableHasherResult,
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StableHasher};
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use ich::{Fingerprint, StableHashingContext, NodeIdHashingMode};
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use std::fmt;
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use std::hash::Hash;
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#[derive(PartialEq, Eq, Clone, Copy, Debug, Hash)]
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@ -173,6 +174,80 @@ impl<'tcx> CodegenUnit<'tcx> {
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self.size_estimate = Some(size_estimate + delta);
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}
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}
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/// CGU names should fulfill the following requirements:
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/// - They should be able to act as a file name on any kind of file system
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/// - They should not collide with other CGU names, even for different versions
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/// of the same crate.
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///
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/// Consequently, we don't use special characters except for '.' and '-' and we
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/// prefix each name with the crate-name and crate-disambiguator.
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///
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/// This function will build CGU names of the form:
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///
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/// ```
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/// <crate-name>.<crate-disambiguator>(-<component>)*[.<special-suffix>]
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/// ```
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///
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/// The '.' before `<special-suffix>` makes sure that names with a special
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/// suffix can never collide with a name built out of regular Rust
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/// identifiers (e.g. module paths).
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pub fn build_cgu_name<I, C, S>(tcx: TyCtxt,
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cnum: CrateNum,
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components: I,
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special_suffix: Option<S>)
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-> InternedString
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where I: IntoIterator<Item=C>,
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C: fmt::Display,
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S: fmt::Display,
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{
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let cgu_name = CodegenUnit::build_cgu_name_no_mangle(tcx,
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cnum,
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components,
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special_suffix);
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if tcx.sess.opts.debugging_opts.human_readable_cgu_names {
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cgu_name
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} else {
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let cgu_name = &cgu_name.as_str()[..];
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Symbol::intern(&CodegenUnit::mangle_name(cgu_name)).as_interned_str()
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}
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}
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/// Same as `CodegenUnit::build_cgu_name()` but will never mangle the
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/// resulting name.
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pub fn build_cgu_name_no_mangle<I, C, S>(tcx: TyCtxt,
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cnum: CrateNum,
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components: I,
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special_suffix: Option<S>)
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-> InternedString
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where I: IntoIterator<Item=C>,
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C: fmt::Display,
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S: fmt::Display,
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{
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use std::fmt::Write;
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let mut cgu_name = String::with_capacity(64);
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// Start out with the crate name and disambiguator
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write!(cgu_name,
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"{}.{}",
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tcx.crate_name(cnum),
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tcx.crate_disambiguator(cnum)).unwrap();
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// Add the components
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for component in components {
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write!(cgu_name, "-{}", component).unwrap();
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}
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if let Some(special_suffix) = special_suffix {
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// We add a dot in here so it cannot clash with anything in a regular
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// Rust identifier
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write!(cgu_name, ".{}", special_suffix).unwrap();
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}
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Symbol::intern(&cgu_name[..]).as_interned_str()
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}
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}
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impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for CodegenUnit<'tcx> {
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@ -26,6 +26,7 @@ use util::nodemap::{FxHashMap, FxHashSet};
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use util::common::{duration_to_secs_str, ErrorReported};
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use util::common::ProfileQueriesMsg;
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use rustc_data_structures::base_n;
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use rustc_data_structures::sync::{self, Lrc, Lock, LockCell, OneThread, Once, RwLock};
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use syntax::ast::NodeId;
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@ -1185,6 +1186,14 @@ impl CrateDisambiguator {
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}
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}
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impl fmt::Display for CrateDisambiguator {
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fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
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let (a, b) = self.0.as_value();
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let as_u128 = a as u128 | ((b as u128) << 64);
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f.write_str(&base_n::encode(as_u128, base_n::CASE_INSENSITIVE))
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}
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}
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impl From<Fingerprint> for CrateDisambiguator {
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fn from(fingerprint: Fingerprint) -> CrateDisambiguator {
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CrateDisambiguator(fingerprint)
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@ -45,13 +45,6 @@ use std::process::{Output, Stdio};
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use std::str;
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use syntax::attr;
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/// The LLVM module name containing crate-metadata. This includes a `.` on
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/// purpose, so it cannot clash with the name of a user-defined module.
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pub const METADATA_MODULE_NAME: &'static str = "crate.metadata";
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// same as for metadata above, but for allocator shim
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pub const ALLOCATOR_MODULE_NAME: &'static str = "crate.allocator";
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pub use rustc_codegen_utils::link::{find_crate_name, filename_for_input, default_output_for_target,
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invalid_output_for_target, build_link_meta, out_filename,
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check_file_is_writeable};
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@ -20,16 +20,23 @@ use rustc::hir::def_id::LOCAL_CRATE;
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use rustc::middle::exported_symbols::SymbolExportLevel;
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use rustc::session::config::{self, Lto};
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use rustc::util::common::time_ext;
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use rustc_data_structures::fx::FxHashMap;
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use time_graph::Timeline;
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use {ModuleCodegen, ModuleLlvm, ModuleKind, ModuleSource};
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use libc;
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use std::ffi::CString;
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use std::ffi::{CString, CStr};
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use std::fs::File;
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use std::io;
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use std::mem;
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use std::path::Path;
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use std::ptr;
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use std::slice;
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use std::sync::Arc;
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pub const THIN_LTO_IMPORTS_INCR_COMP_FILE_NAME: &str = "thin-lto-imports.bin";
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pub fn crate_type_allows_lto(crate_type: config::CrateType) -> bool {
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match crate_type {
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config::CrateTypeExecutable |
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@ -193,7 +200,7 @@ pub(crate) fn run(cgcx: &CodegenContext,
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}
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Lto::Thin |
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Lto::ThinLocal => {
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thin_lto(&diag_handler, modules, upstream_modules, &arr, timeline)
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thin_lto(cgcx, &diag_handler, modules, upstream_modules, &arr, timeline)
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}
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Lto::No => unreachable!(),
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}
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@ -231,7 +238,7 @@ fn fat_lto(cgcx: &CodegenContext,
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.expect("must be codegen'ing at least one module");
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let module = modules.remove(costliest_module);
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let llmod = module.llvm().expect("can't lto pre-codegened modules").llmod;
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info!("using {:?} as a base module", module.llmod_id);
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info!("using {:?} as a base module", module.name);
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// For all other modules we codegened we'll need to link them into our own
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// bitcode. All modules were codegened in their own LLVM context, however,
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@ -241,7 +248,7 @@ fn fat_lto(cgcx: &CodegenContext,
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for module in modules {
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let llvm = module.llvm().expect("can't lto pre-codegened modules");
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let buffer = ModuleBuffer::new(llvm.llmod);
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let llmod_id = CString::new(&module.llmod_id[..]).unwrap();
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let llmod_id = CString::new(&module.name[..]).unwrap();
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serialized_modules.push((SerializedModule::Local(buffer), llmod_id));
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}
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@ -346,7 +353,8 @@ impl Drop for Linker {
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/// calculating the *index* for ThinLTO. This index will then be shared amongst
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/// all of the `LtoModuleCodegen` units returned below and destroyed once
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/// they all go out of scope.
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fn thin_lto(diag_handler: &Handler,
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fn thin_lto(cgcx: &CodegenContext,
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diag_handler: &Handler,
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modules: Vec<ModuleCodegen>,
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serialized_modules: Vec<(SerializedModule, CString)>,
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symbol_white_list: &[*const libc::c_char],
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@ -368,9 +376,9 @@ fn thin_lto(diag_handler: &Handler,
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// the most expensive portion of this small bit of global
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// analysis!
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for (i, module) in modules.iter().enumerate() {
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info!("local module: {} - {}", i, module.llmod_id);
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info!("local module: {} - {}", i, module.name);
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let llvm = module.llvm().expect("can't lto precodegened module");
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let name = CString::new(module.llmod_id.clone()).unwrap();
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let name = CString::new(module.name.clone()).unwrap();
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let buffer = ThinBuffer::new(llvm.llmod);
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thin_modules.push(llvm::ThinLTOModule {
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identifier: name.as_ptr(),
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@ -379,7 +387,7 @@ fn thin_lto(diag_handler: &Handler,
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});
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thin_buffers.push(buffer);
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module_names.push(name);
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timeline.record(&module.llmod_id);
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timeline.record(&module.name);
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}
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// FIXME: All upstream crates are deserialized internally in the
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@ -424,6 +432,18 @@ fn thin_lto(diag_handler: &Handler,
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let msg = format!("failed to prepare thin LTO context");
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return Err(write::llvm_err(&diag_handler, msg))
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}
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// Save the ThinLTO import information for incremental compilation.
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if let Some(ref incr_comp_session_dir) = cgcx.incr_comp_session_dir {
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let path = incr_comp_session_dir.join(THIN_LTO_IMPORTS_INCR_COMP_FILE_NAME);
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let imports = ThinLTOImports::from_thin_lto_data(data);
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if let Err(err) = imports.save_to_file(&path) {
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let msg = format!("Error while writing ThinLTO import data: {}",
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err);
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return Err(write::llvm_err(&diag_handler, msg));
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}
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}
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let data = ThinData(data);
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info!("thin LTO data created");
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timeline.record("data");
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@ -656,7 +676,6 @@ impl ThinModule {
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llcx,
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tm,
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}),
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llmod_id: self.name().to_string(),
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name: self.name().to_string(),
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kind: ModuleKind::Regular,
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};
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@ -776,3 +795,117 @@ impl ThinModule {
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Ok(module)
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}
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}
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#[derive(Debug)]
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pub struct ThinLTOImports {
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// key = llvm name of importing module, value = list of modules it imports from
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imports: FxHashMap<String, Vec<String>>,
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}
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impl ThinLTOImports {
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pub fn new() -> ThinLTOImports {
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ThinLTOImports {
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imports: FxHashMap(),
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}
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}
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/// Load the ThinLTO import map from ThinLTOData.
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unsafe fn from_thin_lto_data(data: *const llvm::ThinLTOData) -> ThinLTOImports {
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fn module_name_to_str(c_str: &CStr) -> &str {
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match c_str.to_str() {
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Ok(s) => s,
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Err(e) => {
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bug!("Encountered non-utf8 LLVM module name `{}`: {}",
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c_str.to_string_lossy(),
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e)
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}
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}
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}
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unsafe extern "C" fn imported_module_callback(payload: *mut libc::c_void,
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importing_module_name: *const libc::c_char,
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imported_module_name: *const libc::c_char) {
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let map = &mut* (payload as *mut ThinLTOImports);
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let importing_module_name = CStr::from_ptr(importing_module_name);
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let importing_module_name = module_name_to_str(&importing_module_name);
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let imported_module_name = CStr::from_ptr(imported_module_name);
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let imported_module_name = module_name_to_str(&imported_module_name);
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if !map.imports.contains_key(importing_module_name) {
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map.imports.insert(importing_module_name.to_owned(), vec![]);
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}
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map.imports
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.get_mut(importing_module_name)
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.unwrap()
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.push(imported_module_name.to_owned());
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}
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let mut map = ThinLTOImports {
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imports: FxHashMap(),
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};
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llvm::LLVMRustGetThinLTOModuleImports(data,
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imported_module_callback,
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&mut map as *mut _ as *mut libc::c_void);
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map
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}
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pub fn save_to_file(&self, path: &Path) -> io::Result<()> {
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use std::io::Write;
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let file = File::create(path)?;
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let mut writer = io::BufWriter::new(file);
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for (importing_module_name, imported_modules) in &self.imports {
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writeln!(writer, "{}", importing_module_name)?;
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for imported_module in imported_modules {
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writeln!(writer, " {}", imported_module)?;
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}
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writeln!(writer)?;
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}
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Ok(())
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}
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pub fn load_from_file(path: &Path) -> io::Result<ThinLTOImports> {
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use std::io::BufRead;
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let mut imports = FxHashMap();
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let mut current_module = None;
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let mut current_imports = vec![];
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let file = File::open(path)?;
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|
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for line in io::BufReader::new(file).lines() {
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let line = line?;
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|
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if line.is_empty() {
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let importing_module = current_module
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.take()
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.expect("Importing module not set");
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imports.insert(importing_module,
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mem::replace(&mut current_imports, vec![]));
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} else if line.starts_with(" ") {
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// This is an imported module
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assert_ne!(current_module, None);
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current_imports.push(line.trim().to_string());
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} else {
|
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// This is the beginning of a new module
|
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assert_eq!(current_module, None);
|
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current_module = Some(line.trim().to_string());
|
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}
|
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}
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|
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Ok(ThinLTOImports {
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imports
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})
|
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}
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||||
}
|
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|
|
|
|||
|
|
@ -696,7 +696,7 @@ unsafe fn codegen(cgcx: &CodegenContext,
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|||
|
||||
if config.emit_bc_compressed {
|
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let dst = bc_out.with_extension(RLIB_BYTECODE_EXTENSION);
|
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let data = bytecode::encode(&module.llmod_id, data);
|
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let data = bytecode::encode(&module.name, data);
|
||||
if let Err(e) = fs::write(&dst, data) {
|
||||
diag_handler.err(&format!("failed to write bytecode: {}", e));
|
||||
}
|
||||
|
|
@ -1308,7 +1308,6 @@ fn execute_work_item(cgcx: &CodegenContext,
|
|||
assert_eq!(bytecode_compressed.is_some(), config.emit_bc_compressed);
|
||||
|
||||
Ok(WorkItemResult::Compiled(CompiledModule {
|
||||
llmod_id: module.llmod_id.clone(),
|
||||
name: module_name,
|
||||
kind: ModuleKind::Regular,
|
||||
pre_existing: true,
|
||||
|
|
|
|||
|
|
@ -29,7 +29,7 @@ use super::ModuleCodegen;
|
|||
use super::ModuleKind;
|
||||
|
||||
use abi;
|
||||
use back::link;
|
||||
use back::{link, lto};
|
||||
use back::write::{self, OngoingCodegen, create_target_machine};
|
||||
use llvm::{ContextRef, ModuleRef, ValueRef, Vector, get_param};
|
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use llvm;
|
||||
|
|
@ -739,15 +739,18 @@ pub fn codegen_crate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
let link_meta = link::build_link_meta(crate_hash);
|
||||
|
||||
// Codegen the metadata.
|
||||
let llmod_id = "metadata";
|
||||
let metadata_cgu_name = CodegenUnit::build_cgu_name(tcx,
|
||||
LOCAL_CRATE,
|
||||
&["crate"],
|
||||
Some("metadata")).as_str()
|
||||
.to_string();
|
||||
let (metadata_llcx, metadata_llmod, metadata) =
|
||||
time(tcx.sess, "write metadata", || {
|
||||
write_metadata(tcx, llmod_id, &link_meta)
|
||||
write_metadata(tcx, &metadata_cgu_name, &link_meta)
|
||||
});
|
||||
|
||||
let metadata_module = ModuleCodegen {
|
||||
name: link::METADATA_MODULE_NAME.to_string(),
|
||||
llmod_id: llmod_id.to_string(),
|
||||
name: metadata_cgu_name,
|
||||
source: ModuleSource::Codegened(ModuleLlvm {
|
||||
llcx: metadata_llcx,
|
||||
llmod: metadata_llmod,
|
||||
|
|
@ -810,26 +813,30 @@ pub fn codegen_crate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
|
||||
// Codegen an allocator shim, if any
|
||||
let allocator_module = if let Some(kind) = *tcx.sess.allocator_kind.get() {
|
||||
unsafe {
|
||||
let llmod_id = "allocator";
|
||||
let (llcx, llmod) =
|
||||
context::create_context_and_module(tcx.sess, llmod_id);
|
||||
let modules = ModuleLlvm {
|
||||
llmod,
|
||||
llcx,
|
||||
tm: create_target_machine(tcx.sess, false),
|
||||
};
|
||||
time(tcx.sess, "write allocator module", || {
|
||||
let llmod_id = CodegenUnit::build_cgu_name(tcx,
|
||||
LOCAL_CRATE,
|
||||
&["crate"],
|
||||
Some("allocator")).as_str()
|
||||
.to_string();
|
||||
let (llcx, llmod) = unsafe {
|
||||
context::create_context_and_module(tcx.sess, &llmod_id)
|
||||
};
|
||||
let modules = ModuleLlvm {
|
||||
llmod,
|
||||
llcx,
|
||||
tm: create_target_machine(tcx.sess, false),
|
||||
};
|
||||
time(tcx.sess, "write allocator module", || {
|
||||
unsafe {
|
||||
allocator::codegen(tcx, &modules, kind)
|
||||
});
|
||||
}
|
||||
});
|
||||
|
||||
Some(ModuleCodegen {
|
||||
name: link::ALLOCATOR_MODULE_NAME.to_string(),
|
||||
llmod_id: llmod_id.to_string(),
|
||||
source: ModuleSource::Codegened(modules),
|
||||
kind: ModuleKind::Allocator,
|
||||
})
|
||||
}
|
||||
Some(ModuleCodegen {
|
||||
name: llmod_id,
|
||||
source: ModuleSource::Codegened(modules),
|
||||
kind: ModuleKind::Allocator,
|
||||
})
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
|
@ -872,21 +879,10 @@ pub fn codegen_crate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
// succeed it means that none of the dependencies has changed
|
||||
// and we can safely re-use.
|
||||
if let Some(dep_node_index) = tcx.dep_graph.try_mark_green(tcx, dep_node) {
|
||||
// Append ".rs" to LLVM module identifier.
|
||||
//
|
||||
// LLVM code generator emits a ".file filename" directive
|
||||
// for ELF backends. Value of the "filename" is set as the
|
||||
// LLVM module identifier. Due to a LLVM MC bug[1], LLVM
|
||||
// crashes if the module identifier is same as other symbols
|
||||
// such as a function name in the module.
|
||||
// 1. http://llvm.org/bugs/show_bug.cgi?id=11479
|
||||
let llmod_id = format!("{}.rs", cgu.name());
|
||||
|
||||
let module = ModuleCodegen {
|
||||
name: cgu.name().to_string(),
|
||||
source: ModuleSource::Preexisting(buf),
|
||||
kind: ModuleKind::Regular,
|
||||
llmod_id,
|
||||
};
|
||||
tcx.dep_graph.mark_loaded_from_cache(dep_node_index, true);
|
||||
write::submit_codegened_module_to_llvm(tcx, module, 0);
|
||||
|
|
@ -1195,21 +1191,8 @@ fn compile_codegen_unit<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
{
|
||||
let cgu_name = cgu.name().to_string();
|
||||
|
||||
// Append ".rs" to LLVM module identifier.
|
||||
//
|
||||
// LLVM code generator emits a ".file filename" directive
|
||||
// for ELF backends. Value of the "filename" is set as the
|
||||
// LLVM module identifier. Due to a LLVM MC bug[1], LLVM
|
||||
// crashes if the module identifier is same as other symbols
|
||||
// such as a function name in the module.
|
||||
// 1. http://llvm.org/bugs/show_bug.cgi?id=11479
|
||||
let llmod_id = format!("{}-{}.rs",
|
||||
cgu.name(),
|
||||
tcx.crate_disambiguator(LOCAL_CRATE)
|
||||
.to_fingerprint().to_hex());
|
||||
|
||||
// Instantiate monomorphizations without filling out definitions yet...
|
||||
let cx = CodegenCx::new(tcx, cgu, &llmod_id);
|
||||
let cx = CodegenCx::new(tcx, cgu);
|
||||
let module = {
|
||||
let mono_items = cx.codegen_unit
|
||||
.items_in_deterministic_order(cx.tcx);
|
||||
|
|
@ -1267,7 +1250,6 @@ fn compile_codegen_unit<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
name: cgu_name,
|
||||
source: ModuleSource::Codegened(llvm_module),
|
||||
kind: ModuleKind::Regular,
|
||||
llmod_id,
|
||||
}
|
||||
};
|
||||
|
||||
|
|
@ -1370,6 +1352,27 @@ mod temp_stable_hash_impls {
|
|||
}
|
||||
}
|
||||
|
||||
#[allow(unused)]
|
||||
fn load_thin_lto_imports(sess: &Session) -> lto::ThinLTOImports {
|
||||
let path = rustc_incremental::in_incr_comp_dir_sess(
|
||||
sess,
|
||||
lto::THIN_LTO_IMPORTS_INCR_COMP_FILE_NAME
|
||||
);
|
||||
|
||||
if !path.exists() {
|
||||
return lto::ThinLTOImports::new();
|
||||
}
|
||||
|
||||
match lto::ThinLTOImports::load_from_file(&path) {
|
||||
Ok(imports) => imports,
|
||||
Err(e) => {
|
||||
let msg = format!("Error while trying to load ThinLTO import data \
|
||||
for incremental compilation: {}", e);
|
||||
sess.fatal(&msg)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn define_custom_section(cx: &CodegenCx, def_id: DefId) {
|
||||
use rustc::mir::interpret::GlobalId;
|
||||
|
||||
|
|
@ -1408,3 +1411,4 @@ pub fn define_custom_section(cx: &CodegenCx, def_id: DefId) {
|
|||
);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -214,8 +214,7 @@ pub unsafe fn create_context_and_module(sess: &Session, mod_name: &str) -> (Cont
|
|||
|
||||
impl<'a, 'tcx> CodegenCx<'a, 'tcx> {
|
||||
pub fn new(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
||||
codegen_unit: Arc<CodegenUnit<'tcx>>,
|
||||
llmod_id: &str)
|
||||
codegen_unit: Arc<CodegenUnit<'tcx>>)
|
||||
-> CodegenCx<'a, 'tcx> {
|
||||
// An interesting part of Windows which MSVC forces our hand on (and
|
||||
// apparently MinGW didn't) is the usage of `dllimport` and `dllexport`
|
||||
|
|
@ -268,7 +267,7 @@ impl<'a, 'tcx> CodegenCx<'a, 'tcx> {
|
|||
|
||||
unsafe {
|
||||
let (llcx, llmod) = create_context_and_module(&tcx.sess,
|
||||
&llmod_id[..]);
|
||||
&codegen_unit.name().as_str());
|
||||
|
||||
let dbg_cx = if tcx.sess.opts.debuginfo != NoDebugInfo {
|
||||
let dctx = debuginfo::CrateDebugContext::new(llmod);
|
||||
|
|
|
|||
|
|
@ -90,7 +90,7 @@ mod back {
|
|||
mod command;
|
||||
pub mod linker;
|
||||
pub mod link;
|
||||
mod lto;
|
||||
pub mod lto;
|
||||
pub mod symbol_export;
|
||||
pub mod write;
|
||||
mod rpath;
|
||||
|
|
@ -258,8 +258,8 @@ struct ModuleCodegen {
|
|||
/// unique amongst **all** crates. Therefore, it should contain
|
||||
/// something unique to this crate (e.g., a module path) as well
|
||||
/// as the crate name and disambiguator.
|
||||
/// We currently generate these names via CodegenUnit::build_cgu_name().
|
||||
name: String,
|
||||
llmod_id: String,
|
||||
source: ModuleSource,
|
||||
kind: ModuleKind,
|
||||
}
|
||||
|
|
@ -306,7 +306,6 @@ impl ModuleCodegen {
|
|||
};
|
||||
|
||||
CompiledModule {
|
||||
llmod_id: self.llmod_id,
|
||||
name: self.name.clone(),
|
||||
kind: self.kind,
|
||||
pre_existing,
|
||||
|
|
@ -320,7 +319,6 @@ impl ModuleCodegen {
|
|||
#[derive(Debug)]
|
||||
struct CompiledModule {
|
||||
name: String,
|
||||
llmod_id: String,
|
||||
kind: ModuleKind,
|
||||
pre_existing: bool,
|
||||
object: Option<PathBuf>,
|
||||
|
|
|
|||
|
|
@ -27,11 +27,11 @@
|
|||
//! the HIR doesn't change as a result of the annotations, which might
|
||||
//! perturb the reuse results.
|
||||
|
||||
use rustc::hir::def_id::LOCAL_CRATE;
|
||||
use rustc::dep_graph::{DepNode, DepConstructor};
|
||||
use rustc::mir::mono::CodegenUnit;
|
||||
use rustc::ty::TyCtxt;
|
||||
use syntax::ast;
|
||||
use syntax_pos::symbol::Symbol;
|
||||
use rustc::ich::{ATTR_PARTITION_REUSED, ATTR_PARTITION_CODEGENED};
|
||||
|
||||
const MODULE: &'static str = "module";
|
||||
|
|
@ -72,12 +72,37 @@ impl<'a, 'tcx> AssertModuleSource<'a, 'tcx> {
|
|||
return;
|
||||
}
|
||||
|
||||
let mname = self.field(attr, MODULE);
|
||||
let mangled_cgu_name = CodegenUnit::mangle_name(&mname.as_str());
|
||||
let mangled_cgu_name = Symbol::intern(&mangled_cgu_name).as_interned_str();
|
||||
let user_path = self.field(attr, MODULE).as_str().to_string();
|
||||
let crate_name = self.tcx.crate_name(LOCAL_CRATE).as_str().to_string();
|
||||
|
||||
if !user_path.starts_with(&crate_name) {
|
||||
let msg = format!("Found malformed codegen unit name `{}`. \
|
||||
Codegen units names must always start with the name of the \
|
||||
crate (`{}` in this case).", user_path, crate_name);
|
||||
self.tcx.sess.span_fatal(attr.span, &msg);
|
||||
}
|
||||
|
||||
// Split of the "special suffix" if there is one.
|
||||
let (user_path, cgu_special_suffix) = if let Some(index) = user_path.rfind(".") {
|
||||
(&user_path[..index], Some(&user_path[index + 1 ..]))
|
||||
} else {
|
||||
(&user_path[..], None)
|
||||
};
|
||||
|
||||
let mut cgu_path_components = user_path.split("-").collect::<Vec<_>>();
|
||||
|
||||
// Remove the crate name
|
||||
assert_eq!(cgu_path_components.remove(0), crate_name);
|
||||
|
||||
let cgu_name = CodegenUnit::build_cgu_name(self.tcx,
|
||||
LOCAL_CRATE,
|
||||
cgu_path_components,
|
||||
cgu_special_suffix);
|
||||
|
||||
debug!("mapping '{}' to cgu name '{}'", self.field(attr, MODULE), cgu_name);
|
||||
|
||||
let dep_node = DepNode::new(self.tcx,
|
||||
DepConstructor::CompileCodegenUnit(mangled_cgu_name));
|
||||
DepConstructor::CompileCodegenUnit(cgu_name));
|
||||
|
||||
if let Some(loaded_from_cache) = self.tcx.dep_graph.was_loaded_from_cache(&dep_node) {
|
||||
match (disposition, loaded_from_cache) {
|
||||
|
|
@ -85,13 +110,13 @@ impl<'a, 'tcx> AssertModuleSource<'a, 'tcx> {
|
|||
self.tcx.sess.span_err(
|
||||
attr.span,
|
||||
&format!("expected module named `{}` to be Reused but is Codegened",
|
||||
mname));
|
||||
user_path));
|
||||
}
|
||||
(Disposition::Codegened, true) => {
|
||||
self.tcx.sess.span_err(
|
||||
attr.span,
|
||||
&format!("expected module named `{}` to be Codegened but is Reused",
|
||||
mname));
|
||||
user_path));
|
||||
}
|
||||
(Disposition::Reused, true) |
|
||||
(Disposition::Codegened, false) => {
|
||||
|
|
@ -99,7 +124,19 @@ impl<'a, 'tcx> AssertModuleSource<'a, 'tcx> {
|
|||
}
|
||||
}
|
||||
} else {
|
||||
self.tcx.sess.span_err(attr.span, &format!("no module named `{}`", mname));
|
||||
let available_cgus = self.tcx
|
||||
.collect_and_partition_mono_items(LOCAL_CRATE)
|
||||
.1
|
||||
.iter()
|
||||
.map(|cgu| format!("{}", cgu.name()))
|
||||
.collect::<Vec<String>>()
|
||||
.join(", ");
|
||||
|
||||
self.tcx.sess.span_err(attr.span,
|
||||
&format!("no module named `{}` (mangled: {}).\nAvailable modules: {}",
|
||||
user_path,
|
||||
cgu_name,
|
||||
available_cgus));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -44,6 +44,7 @@ pub use persist::copy_cgu_workproducts_to_incr_comp_cache_dir;
|
|||
pub use persist::save_dep_graph;
|
||||
pub use persist::save_work_product_index;
|
||||
pub use persist::in_incr_comp_dir;
|
||||
pub use persist::in_incr_comp_dir_sess;
|
||||
pub use persist::prepare_session_directory;
|
||||
pub use persist::finalize_session_directory;
|
||||
pub use persist::delete_workproduct_files;
|
||||
|
|
|
|||
|
|
@ -23,6 +23,7 @@ mod file_format;
|
|||
pub use self::fs::finalize_session_directory;
|
||||
pub use self::fs::garbage_collect_session_directories;
|
||||
pub use self::fs::in_incr_comp_dir;
|
||||
pub use self::fs::in_incr_comp_dir_sess;
|
||||
pub use self::fs::prepare_session_directory;
|
||||
pub use self::load::dep_graph_tcx_init;
|
||||
pub use self::load::load_dep_graph;
|
||||
|
|
|
|||
|
|
@ -350,6 +350,10 @@ pub enum ThinLTOData {}
|
|||
/// LLVMRustThinLTOBuffer
|
||||
pub enum ThinLTOBuffer {}
|
||||
|
||||
// LLVMRustModuleNameCallback
|
||||
pub type ThinLTOModuleNameCallback =
|
||||
unsafe extern "C" fn(*mut c_void, *const c_char, *const c_char);
|
||||
|
||||
/// LLVMRustThinLTOModule
|
||||
#[repr(C)]
|
||||
pub struct ThinLTOModule {
|
||||
|
|
@ -1778,6 +1782,11 @@ extern "C" {
|
|||
Data: *const ThinLTOData,
|
||||
Module: ModuleRef,
|
||||
) -> bool;
|
||||
pub fn LLVMRustGetThinLTOModuleImports(
|
||||
Data: *const ThinLTOData,
|
||||
ModuleNameCallback: ThinLTOModuleNameCallback,
|
||||
CallbackPayload: *mut c_void,
|
||||
);
|
||||
pub fn LLVMRustFreeThinLTOData(Data: *mut ThinLTOData);
|
||||
pub fn LLVMRustParseBitcodeForThinLTO(
|
||||
Context: ContextRef,
|
||||
|
|
|
|||
|
|
@ -104,7 +104,7 @@
|
|||
|
||||
use monomorphize::collector::InliningMap;
|
||||
use rustc::dep_graph::WorkProductId;
|
||||
use rustc::hir::def_id::DefId;
|
||||
use rustc::hir::def_id::{DefId, LOCAL_CRATE};
|
||||
use rustc::hir::map::DefPathData;
|
||||
use rustc::mir::mono::{Linkage, Visibility};
|
||||
use rustc::middle::exported_symbols::SymbolExportLevel;
|
||||
|
|
@ -114,7 +114,7 @@ use rustc::util::nodemap::{FxHashMap, FxHashSet};
|
|||
use std::collections::hash_map::Entry;
|
||||
use std::cmp;
|
||||
use syntax::ast::NodeId;
|
||||
use syntax::symbol::{Symbol, InternedString};
|
||||
use syntax::symbol::InternedString;
|
||||
use rustc::mir::mono::MonoItem;
|
||||
use monomorphize::item::{MonoItemExt, InstantiationMode};
|
||||
|
||||
|
|
@ -204,16 +204,9 @@ impl<'tcx> CodegenUnitExt<'tcx> for CodegenUnit<'tcx> {
|
|||
|
||||
// Anything we can't find a proper codegen unit for goes into this.
|
||||
fn fallback_cgu_name(tcx: TyCtxt) -> InternedString {
|
||||
const FALLBACK_CODEGEN_UNIT: &'static str = "__rustc_fallback_codegen_unit";
|
||||
|
||||
if tcx.sess.opts.debugging_opts.human_readable_cgu_names {
|
||||
Symbol::intern(FALLBACK_CODEGEN_UNIT).as_interned_str()
|
||||
} else {
|
||||
Symbol::intern(&CodegenUnit::mangle_name(FALLBACK_CODEGEN_UNIT)).as_interned_str()
|
||||
}
|
||||
CodegenUnit::build_cgu_name(tcx, LOCAL_CRATE, &["fallback"], Some("cgu"))
|
||||
}
|
||||
|
||||
|
||||
pub fn partition<'a, 'tcx, I>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
||||
mono_items: I,
|
||||
strategy: PartitioningStrategy,
|
||||
|
|
@ -224,8 +217,7 @@ pub fn partition<'a, 'tcx, I>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
// In the first step, we place all regular monomorphizations into their
|
||||
// respective 'home' codegen unit. Regular monomorphizations are all
|
||||
// functions and statics defined in the local crate.
|
||||
let mut initial_partitioning = place_root_mono_items(tcx,
|
||||
mono_items);
|
||||
let mut initial_partitioning = place_root_mono_items(tcx, mono_items);
|
||||
|
||||
initial_partitioning.codegen_units.iter_mut().for_each(|cgu| cgu.estimate_size(&tcx));
|
||||
|
||||
|
|
@ -234,7 +226,7 @@ pub fn partition<'a, 'tcx, I>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
// If the partitioning should produce a fixed count of codegen units, merge
|
||||
// until that count is reached.
|
||||
if let PartitioningStrategy::FixedUnitCount(count) = strategy {
|
||||
merge_codegen_units(&mut initial_partitioning, count, &tcx.crate_name.as_str());
|
||||
merge_codegen_units(tcx, &mut initial_partitioning, count);
|
||||
|
||||
debug_dump(tcx, "POST MERGING:", initial_partitioning.codegen_units.iter());
|
||||
}
|
||||
|
|
@ -328,7 +320,7 @@ fn place_root_mono_items<'a, 'tcx, I>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
};
|
||||
|
||||
let codegen_unit = codegen_units.entry(codegen_unit_name.clone())
|
||||
.or_insert_with(make_codegen_unit);
|
||||
.or_insert_with(make_codegen_unit);
|
||||
|
||||
let mut can_be_internalized = true;
|
||||
let default_visibility = |id: DefId, is_generic: bool| {
|
||||
|
|
@ -491,9 +483,9 @@ fn place_root_mono_items<'a, 'tcx, I>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
}
|
||||
}
|
||||
|
||||
fn merge_codegen_units<'tcx>(initial_partitioning: &mut PreInliningPartitioning<'tcx>,
|
||||
target_cgu_count: usize,
|
||||
crate_name: &str) {
|
||||
fn merge_codegen_units<'tcx>(tcx: TyCtxt<'_, 'tcx, 'tcx>,
|
||||
initial_partitioning: &mut PreInliningPartitioning<'tcx>,
|
||||
target_cgu_count: usize) {
|
||||
assert!(target_cgu_count >= 1);
|
||||
let codegen_units = &mut initial_partitioning.codegen_units;
|
||||
|
||||
|
|
@ -522,7 +514,7 @@ fn merge_codegen_units<'tcx>(initial_partitioning: &mut PreInliningPartitioning<
|
|||
}
|
||||
|
||||
for (index, cgu) in codegen_units.iter_mut().enumerate() {
|
||||
cgu.set_name(numbered_codegen_unit_name(crate_name, index));
|
||||
cgu.set_name(numbered_codegen_unit_name(tcx, index));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -727,42 +719,26 @@ fn compute_codegen_unit_name<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
|||
def_id: DefId,
|
||||
volatile: bool)
|
||||
-> InternedString {
|
||||
// Unfortunately we cannot just use the `ty::item_path` infrastructure here
|
||||
// because we need paths to modules and the DefIds of those are not
|
||||
// available anymore for external items.
|
||||
let mut cgu_name = String::with_capacity(64);
|
||||
|
||||
let def_path = tcx.def_path(def_id);
|
||||
cgu_name.push_str(&tcx.crate_name(def_path.krate).as_str());
|
||||
|
||||
for part in tcx.def_path(def_id)
|
||||
.data
|
||||
.iter()
|
||||
.take_while(|part| {
|
||||
match part.data {
|
||||
DefPathData::Module(..) => true,
|
||||
_ => false,
|
||||
}
|
||||
}) {
|
||||
cgu_name.push_str("-");
|
||||
cgu_name.push_str(&part.data.as_interned_str().as_str());
|
||||
}
|
||||
let components = def_path.data.iter().take_while(|part| {
|
||||
match part.data {
|
||||
DefPathData::Module(..) => true,
|
||||
_ => false,
|
||||
}
|
||||
}).map(|part| part.data.as_interned_str());
|
||||
|
||||
if volatile {
|
||||
cgu_name.push_str(".volatile");
|
||||
}
|
||||
|
||||
let cgu_name = if tcx.sess.opts.debugging_opts.human_readable_cgu_names {
|
||||
cgu_name
|
||||
let volatile_suffix = if volatile {
|
||||
Some("volatile")
|
||||
} else {
|
||||
CodegenUnit::mangle_name(&cgu_name)
|
||||
None
|
||||
};
|
||||
|
||||
Symbol::intern(&cgu_name[..]).as_interned_str()
|
||||
CodegenUnit::build_cgu_name(tcx, def_path.krate, components, volatile_suffix)
|
||||
}
|
||||
|
||||
fn numbered_codegen_unit_name(crate_name: &str, index: usize) -> InternedString {
|
||||
Symbol::intern(&format!("{}{}", crate_name, index)).as_interned_str()
|
||||
fn numbered_codegen_unit_name(tcx: TyCtxt, index: usize) -> InternedString {
|
||||
CodegenUnit::build_cgu_name_no_mangle(tcx, LOCAL_CRATE, &["cgu"], Some(index))
|
||||
}
|
||||
|
||||
fn debug_dump<'a, 'b, 'tcx, I>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
||||
|
|
|
|||
|
|
@ -1099,6 +1099,30 @@ LLVMRustPrepareThinLTOImport(const LLVMRustThinLTOData *Data, LLVMModuleRef M) {
|
|||
return true;
|
||||
}
|
||||
|
||||
extern "C" typedef void (*LLVMRustModuleNameCallback)(void*, // payload
|
||||
const char*, // importing module name
|
||||
const char*); // imported module name
|
||||
|
||||
// Calls `module_name_callback` for each module import done by ThinLTO.
|
||||
// The callback is provided with regular null-terminated C strings.
|
||||
extern "C" void
|
||||
LLVMRustGetThinLTOModuleImports(const LLVMRustThinLTOData *data,
|
||||
LLVMRustModuleNameCallback module_name_callback,
|
||||
void* callback_payload) {
|
||||
for (const auto& importing_module : data->ImportLists) {
|
||||
const std::string importing_module_id = importing_module.getKey().str();
|
||||
|
||||
const auto& imports = importing_module.getValue();
|
||||
|
||||
for (const auto& imported_module : imports) {
|
||||
const std::string imported_module_id = imported_module.getKey().str();
|
||||
module_name_callback(callback_payload,
|
||||
importing_module_id.c_str(),
|
||||
imported_module_id.c_str());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// This struct and various functions are sort of a hack right now, but the
|
||||
// problem is that we've got in-memory LLVM modules after we generate and
|
||||
// optimize all codegen-units for one compilation in rustc. To be compatible
|
||||
|
|
@ -1280,6 +1304,11 @@ LLVMRustPrepareThinLTOImport(const LLVMRustThinLTOData *Data, LLVMModuleRef M) {
|
|||
report_fatal_error("ThinLTO not available");
|
||||
}
|
||||
|
||||
extern "C" LLVMRustThinLTOModuleImports
|
||||
LLVMRustGetLLVMRustThinLTOModuleImports(const LLVMRustThinLTOData *Data) {
|
||||
report_fatal_error("ThinLTO not available");
|
||||
}
|
||||
|
||||
extern "C" void
|
||||
LLVMRustFreeThinLTOData(LLVMRustThinLTOData *Data) {
|
||||
report_fatal_error("ThinLTO not available");
|
||||
|
|
|
|||
|
|
@ -14,7 +14,7 @@
|
|||
|
||||
#![feature(start)]
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<drop_in_place_intrinsic::StructWithDtor[0]> @@ drop_in_place_intrinsic0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<drop_in_place_intrinsic::StructWithDtor[0]> @@ drop_in_place_intrinsic-cgu.0[Internal]
|
||||
struct StructWithDtor(u32);
|
||||
|
||||
impl Drop for StructWithDtor {
|
||||
|
|
@ -26,7 +26,7 @@ impl Drop for StructWithDtor {
|
|||
#[start]
|
||||
fn start(_: isize, _: *const *const u8) -> isize {
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<[drop_in_place_intrinsic::StructWithDtor[0]; 2]> @@ drop_in_place_intrinsic0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<[drop_in_place_intrinsic::StructWithDtor[0]; 2]> @@ drop_in_place_intrinsic-cgu.0[Internal]
|
||||
let x = [StructWithDtor(0), StructWithDtor(1)];
|
||||
|
||||
drop_slice_in_place(&x);
|
||||
|
|
@ -40,7 +40,7 @@ fn drop_slice_in_place(x: &[StructWithDtor]) {
|
|||
// This is the interesting thing in this test case: Normally we would
|
||||
// not have drop-glue for the unsized [StructWithDtor]. This has to be
|
||||
// generated though when the drop_in_place() intrinsic is used.
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<[drop_in_place_intrinsic::StructWithDtor[0]]> @@ drop_in_place_intrinsic0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<[drop_in_place_intrinsic::StructWithDtor[0]]> @@ drop_in_place_intrinsic-cgu.0[Internal]
|
||||
::std::ptr::drop_in_place(x as *const _ as *mut [StructWithDtor]);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -47,7 +47,7 @@ enum EnumNoDrop<T1, T2> {
|
|||
struct NonGenericNoDrop(i32);
|
||||
|
||||
struct NonGenericWithDrop(i32);
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::NonGenericWithDrop[0]> @@ generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::NonGenericWithDrop[0]> @@ generic_drop_glue-cgu.0[Internal]
|
||||
|
||||
impl Drop for NonGenericWithDrop {
|
||||
//~ MONO_ITEM fn generic_drop_glue::{{impl}}[2]::drop[0]
|
||||
|
|
@ -57,11 +57,11 @@ impl Drop for NonGenericWithDrop {
|
|||
//~ MONO_ITEM fn generic_drop_glue::start[0]
|
||||
#[start]
|
||||
fn start(_: isize, _: *const *const u8) -> isize {
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::StructWithDrop[0]<i8, char>> @@ generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::StructWithDrop[0]<i8, char>> @@ generic_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn generic_drop_glue::{{impl}}[0]::drop[0]<i8, char>
|
||||
let _ = StructWithDrop { x: 0i8, y: 'a' }.x;
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::StructWithDrop[0]<&str, generic_drop_glue::NonGenericNoDrop[0]>> @@ generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::StructWithDrop[0]<&str, generic_drop_glue::NonGenericNoDrop[0]>> @@ generic_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn generic_drop_glue::{{impl}}[0]::drop[0]<&str, generic_drop_glue::NonGenericNoDrop[0]>
|
||||
let _ = StructWithDrop { x: "&str", y: NonGenericNoDrop(0) }.y;
|
||||
|
||||
|
|
@ -70,17 +70,17 @@ fn start(_: isize, _: *const *const u8) -> isize {
|
|||
|
||||
// This is supposed to generate drop-glue because it contains a field that
|
||||
// needs to be dropped.
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::StructNoDrop[0]<generic_drop_glue::NonGenericWithDrop[0], f64>> @@ generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::StructNoDrop[0]<generic_drop_glue::NonGenericWithDrop[0], f64>> @@ generic_drop_glue-cgu.0[Internal]
|
||||
let _ = StructNoDrop { x: NonGenericWithDrop(0), y: 0f64 }.y;
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::EnumWithDrop[0]<i32, i64>> @@ generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::EnumWithDrop[0]<i32, i64>> @@ generic_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn generic_drop_glue::{{impl}}[1]::drop[0]<i32, i64>
|
||||
let _ = match EnumWithDrop::A::<i32, i64>(0) {
|
||||
EnumWithDrop::A(x) => x,
|
||||
EnumWithDrop::B(x) => x as i32
|
||||
};
|
||||
|
||||
//~MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::EnumWithDrop[0]<f64, f32>> @@ generic_drop_glue0[Internal]
|
||||
//~MONO_ITEM fn core::ptr[0]::drop_in_place[0]<generic_drop_glue::EnumWithDrop[0]<f64, f32>> @@ generic_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn generic_drop_glue::{{impl}}[1]::drop[0]<f64, f32>
|
||||
let _ = match EnumWithDrop::B::<f64, f32>(1.0) {
|
||||
EnumWithDrop::A(x) => x,
|
||||
|
|
|
|||
|
|
@ -34,13 +34,13 @@ impl<T> Trait for Struct<T> {
|
|||
fn start(_: isize, _: *const *const u8) -> isize {
|
||||
let s1 = Struct { _a: 0u32 };
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<instantiation_through_vtable::Struct[0]<u32>> @@ instantiation_through_vtable0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<instantiation_through_vtable::Struct[0]<u32>> @@ instantiation_through_vtable-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn instantiation_through_vtable::{{impl}}[0]::foo[0]<u32>
|
||||
//~ MONO_ITEM fn instantiation_through_vtable::{{impl}}[0]::bar[0]<u32>
|
||||
let _ = &s1 as &Trait;
|
||||
|
||||
let s1 = Struct { _a: 0u64 };
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<instantiation_through_vtable::Struct[0]<u64>> @@ instantiation_through_vtable0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<instantiation_through_vtable::Struct[0]<u64>> @@ instantiation_through_vtable-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn instantiation_through_vtable::{{impl}}[0]::foo[0]<u64>
|
||||
//~ MONO_ITEM fn instantiation_through_vtable::{{impl}}[0]::bar[0]<u64>
|
||||
let _ = &s1 as &Trait;
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@
|
|||
#![deny(dead_code)]
|
||||
#![feature(start)]
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<non_generic_drop_glue::StructWithDrop[0]> @@ non_generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<non_generic_drop_glue::StructWithDrop[0]> @@ non_generic_drop_glue-cgu.0[Internal]
|
||||
struct StructWithDrop {
|
||||
x: i32
|
||||
}
|
||||
|
|
@ -29,7 +29,7 @@ struct StructNoDrop {
|
|||
x: i32
|
||||
}
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<non_generic_drop_glue::EnumWithDrop[0]> @@ non_generic_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<non_generic_drop_glue::EnumWithDrop[0]> @@ non_generic_drop_glue-cgu.0[Internal]
|
||||
enum EnumWithDrop {
|
||||
A(i32)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -15,11 +15,11 @@
|
|||
#![deny(dead_code)]
|
||||
#![feature(start)]
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::Root[0]> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::Root[0]> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
struct Root(Intermediate);
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::Intermediate[0]> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::Intermediate[0]> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
struct Intermediate(Leaf);
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::Leaf[0]> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::Leaf[0]> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
struct Leaf;
|
||||
|
||||
impl Drop for Leaf {
|
||||
|
|
@ -40,15 +40,15 @@ impl<T> Drop for LeafGen<T> {
|
|||
fn start(_: isize, _: *const *const u8) -> isize {
|
||||
let _ = Root(Intermediate(Leaf));
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::RootGen[0]<u32>> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::IntermediateGen[0]<u32>> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::LeafGen[0]<u32>> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::RootGen[0]<u32>> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::IntermediateGen[0]<u32>> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::LeafGen[0]<u32>> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn transitive_drop_glue::{{impl}}[1]::drop[0]<u32>
|
||||
let _ = RootGen(IntermediateGen(LeafGen(0u32)));
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::RootGen[0]<i16>> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::IntermediateGen[0]<i16>> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::LeafGen[0]<i16>> @@ transitive_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::RootGen[0]<i16>> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::IntermediateGen[0]<i16>> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<transitive_drop_glue::LeafGen[0]<i16>> @@ transitive_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn transitive_drop_glue::{{impl}}[1]::drop[0]<i16>
|
||||
let _ = RootGen(IntermediateGen(LeafGen(0i16)));
|
||||
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@
|
|||
#![deny(dead_code)]
|
||||
#![feature(start)]
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<tuple_drop_glue::Dropped[0]> @@ tuple_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<tuple_drop_glue::Dropped[0]> @@ tuple_drop_glue-cgu.0[Internal]
|
||||
struct Dropped;
|
||||
|
||||
impl Drop for Dropped {
|
||||
|
|
@ -26,11 +26,11 @@ impl Drop for Dropped {
|
|||
//~ MONO_ITEM fn tuple_drop_glue::start[0]
|
||||
#[start]
|
||||
fn start(_: isize, _: *const *const u8) -> isize {
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<(u32, tuple_drop_glue::Dropped[0])> @@ tuple_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<(u32, tuple_drop_glue::Dropped[0])> @@ tuple_drop_glue-cgu.0[Internal]
|
||||
let x = (0u32, Dropped);
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<(i16, (tuple_drop_glue::Dropped[0], bool))> @@ tuple_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<(tuple_drop_glue::Dropped[0], bool)> @@ tuple_drop_glue0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<(i16, (tuple_drop_glue::Dropped[0], bool))> @@ tuple_drop_glue-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<(tuple_drop_glue::Dropped[0], bool)> @@ tuple_drop_glue-cgu.0[Internal]
|
||||
let x = (0i16, (Dropped, true));
|
||||
|
||||
0
|
||||
|
|
|
|||
|
|
@ -59,13 +59,13 @@ impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Wrapper<U>> for Wrapper<T>
|
|||
fn start(_: isize, _: *const *const u8) -> isize {
|
||||
// simple case
|
||||
let bool_sized = &true;
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<bool> @@ unsizing0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<bool> @@ unsizing-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn unsizing::{{impl}}[0]::foo[0]
|
||||
let _bool_unsized = bool_sized as &Trait;
|
||||
|
||||
let char_sized = &'a';
|
||||
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<char> @@ unsizing0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<char> @@ unsizing-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn unsizing::{{impl}}[1]::foo[0]
|
||||
let _char_unsized = char_sized as &Trait;
|
||||
|
||||
|
|
@ -75,13 +75,13 @@ fn start(_: isize, _: *const *const u8) -> isize {
|
|||
_b: 2,
|
||||
_c: 3.0f64
|
||||
};
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<f64> @@ unsizing0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<f64> @@ unsizing-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn unsizing::{{impl}}[2]::foo[0]
|
||||
let _struct_unsized = struct_sized as &Struct<Trait>;
|
||||
|
||||
// custom coercion
|
||||
let wrapper_sized = Wrapper(&0u32);
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<u32> @@ unsizing0[Internal]
|
||||
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<u32> @@ unsizing-cgu.0[Internal]
|
||||
//~ MONO_ITEM fn unsizing::{{impl}}[3]::foo[0]
|
||||
let _wrapper_sized = wrapper_sized as Wrapper<Trait>;
|
||||
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@
|
|||
// revisions:rpass1 rpass2
|
||||
// compile-flags: -Z query-dep-graph
|
||||
|
||||
#![rustc_partition_reused(module="__rustc_fallback_codegen_unit", cfg="rpass2")]
|
||||
#![rustc_partition_reused(module="generic-fallback.cgu", cfg="rpass2")]
|
||||
#![feature(rustc_attrs)]
|
||||
|
||||
#![crate_type="rlib"]
|
||||
|
|
|
|||
|
|
@ -17,22 +17,22 @@ all: staticlib staticlib-fat-lto staticlib-thin-lto rlib exe cdylib rdylib
|
|||
staticlib: lib.rs
|
||||
$(BUILD_LIB) --crate-type=staticlib -o $(TMPDIR)/liblib.a
|
||||
$(call EXTRACT_OBJS, liblib.a)
|
||||
$(ASSERT_IS_BITCODE_OBJ) $(TMPDIR)/liblib.lib0.rcgu.o
|
||||
for file in $(TMPDIR)/liblib.*.rcgu.o; do $(ASSERT_IS_BITCODE_OBJ) $$file; done
|
||||
|
||||
staticlib-fat-lto: lib.rs
|
||||
$(BUILD_LIB) --crate-type=staticlib -o $(TMPDIR)/liblib-fat-lto.a -Clto=fat
|
||||
$(call EXTRACT_OBJS, liblib-fat-lto.a)
|
||||
$(ASSERT_IS_BITCODE_OBJ) $(TMPDIR)/liblib-fat-lto.lib0.rcgu.o
|
||||
for file in $(TMPDIR)/liblib-fat-lto.*.rcgu.o; do $(ASSERT_IS_BITCODE_OBJ) $$file; done
|
||||
|
||||
staticlib-thin-lto: lib.rs
|
||||
$(BUILD_LIB) --crate-type=staticlib -o $(TMPDIR)/liblib-thin-lto.a -Clto=thin
|
||||
$(call EXTRACT_OBJS, liblib-thin-lto.a)
|
||||
$(ASSERT_IS_BITCODE_OBJ) $(TMPDIR)/liblib-thin-lto.lib0.rcgu.o
|
||||
for file in $(TMPDIR)/liblib-thin-lto.*.rcgu.o; do $(ASSERT_IS_BITCODE_OBJ) $$file; done
|
||||
|
||||
rlib: lib.rs
|
||||
$(BUILD_LIB) --crate-type=rlib -o $(TMPDIR)/liblib.rlib
|
||||
$(call EXTRACT_OBJS, liblib.rlib)
|
||||
$(ASSERT_IS_BITCODE_OBJ) $(TMPDIR)/liblib.lib0.rcgu.o
|
||||
for file in $(TMPDIR)/liblib.*.rcgu.o; do $(ASSERT_IS_BITCODE_OBJ) $$file; done
|
||||
|
||||
cdylib: lib.rs
|
||||
$(BUILD_LIB) --crate-type=cdylib --emit=obj -o $(TMPDIR)/cdylib.o
|
||||
|
|
|
|||
|
|
@ -2,5 +2,5 @@
|
|||
|
||||
all:
|
||||
$(RUSTC) -C extra-filename=bar foo.rs -C save-temps
|
||||
rm $(TMPDIR)/foobar.foo0.rcgu.o
|
||||
rm $(TMPDIR)/foobar.foo*0.rcgu.o
|
||||
rm $(TMPDIR)/$(call BIN,foobar)
|
||||
|
|
|
|||
|
|
@ -2209,12 +2209,12 @@ impl<'test> TestCx<'test> {
|
|||
.stdout
|
||||
.lines()
|
||||
.filter(|line| line.starts_with(PREFIX))
|
||||
.map(str_to_mono_item)
|
||||
.map(|line| str_to_mono_item(line, true))
|
||||
.collect();
|
||||
|
||||
let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
|
||||
.iter()
|
||||
.map(|e| str_to_mono_item(&e.msg[..]))
|
||||
.map(|e| str_to_mono_item(&e.msg[..], false))
|
||||
.collect();
|
||||
|
||||
let mut missing = Vec::new();
|
||||
|
|
@ -2299,14 +2299,14 @@ impl<'test> TestCx<'test> {
|
|||
}
|
||||
|
||||
// [MONO_ITEM] name [@@ (cgu)+]
|
||||
fn str_to_mono_item(s: &str) -> MonoItem {
|
||||
fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
|
||||
let s = if s.starts_with(PREFIX) {
|
||||
(&s[PREFIX.len()..]).trim()
|
||||
} else {
|
||||
s.trim()
|
||||
};
|
||||
|
||||
let full_string = format!("{}{}", PREFIX, s.trim().to_owned());
|
||||
let full_string = format!("{}{}", PREFIX, s);
|
||||
|
||||
let parts: Vec<&str> = s
|
||||
.split(CGU_MARKER)
|
||||
|
|
@ -2323,7 +2323,13 @@ impl<'test> TestCx<'test> {
|
|||
.split(' ')
|
||||
.map(str::trim)
|
||||
.filter(|s| !s.is_empty())
|
||||
.map(str::to_owned)
|
||||
.map(|s| {
|
||||
if cgu_has_crate_disambiguator {
|
||||
remove_crate_disambiguator_from_cgu(s)
|
||||
} else {
|
||||
s.to_string()
|
||||
}
|
||||
})
|
||||
.collect()
|
||||
} else {
|
||||
HashSet::new()
|
||||
|
|
@ -2348,6 +2354,23 @@ impl<'test> TestCx<'test> {
|
|||
|
||||
string
|
||||
}
|
||||
|
||||
fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
|
||||
// The first '.' is the start of the crate disambiguator
|
||||
let disambiguator_start = cgu.find('.')
|
||||
.expect("Could not find start of crate disambiguator in CGU spec");
|
||||
|
||||
// The first non-alphanumeric character is the end of the disambiguator
|
||||
let disambiguator_end = cgu[disambiguator_start + 1 ..]
|
||||
.find(|c| !char::is_alphanumeric(c))
|
||||
.expect("Could not find end of crate disambiguator in CGU spec")
|
||||
+ disambiguator_start + 1;
|
||||
|
||||
let mut result = cgu[0 .. disambiguator_start].to_string();
|
||||
result.push_str(&cgu[disambiguator_end ..]);
|
||||
|
||||
result
|
||||
}
|
||||
}
|
||||
|
||||
fn init_incremental_test(&self) {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue